Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual foi o agregado para um time #2 do Okk Beograd?
 ###Tabelas: CREATE TABLE waterford_and_limerick_railway (waterford_and_limerick_railway_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Type VARCHAR, Nos. VARCHAR, GSWR Class INT, GSWR Nos. VARCHAR, GSR Class VARCHAR, Inchicore Class VARCHAR, Withdrawn VARCHAR) CREATE TABLE main_issuers (main_issuers_id AUTO_INCREMENT PRIMARY KEY, Currency VARCHAR, Country VARCHAR, Generic Name or Nickname VARCHAR, Rating ( S&P / Moodys ) VARCHAR, Negotiable debt at mid-2005 ( US dollar bn equivalent) INT, Government financial liabilities as % of GDP (end 2003 - source : OECD ) VARCHAR, Issuer VARCHAR, Internet site VARCHAR) CREATE TABLE first_round (first_round_id AUTO_INCREMENT PRIMARY KEY, Team #1 VARCHAR, Agg. VARCHAR, Team #2 VARCHAR, 1st leg VARCHAR, 2nd leg VARCHAR) CREATE TABLE jersey_progress_chart (jersey_progress_chart_id AUTO_INCREMENT PRIMARY KEY, Stage (Winner) VARCHAR, General Classification Yellow Jersey VARCHAR, Mountains Classification Green Jersey VARCHAR, Points Classification Navy Blue Jersey VARCHAR, Intermediate Sprints Classification Red Jersey VARCHAR, Team Classification VARCHAR) CREATE TABLE bahá'í_faith_support (bahá'í_faith_support_id AUTO_INCREMENT PRIMARY KEY, Programs VARCHAR, World INT, Africa INT, Americas INT, Asia INT, Australasia INT, Europe INT)  
SELECT Agg. FROM first_round WHERE Team #2 = okk beograd